In this Section we discuss how it can be possible to determine if the dominant SZE inside the cavity is the thermal or the non-thermal one, adding some other considerations as compared to the previous paper [1]}, to which we refer instead for other details on the models, on the properties of the electrons populations used in the calculations, on the comparison between the SZE inside the cavity and the one of the surrounding ICM, and on the observational challenges to be faced in order to derive this kind of information.
